Disk cultivator.



PATaNTEDMAY'lfl. 1907. J. GRANT. y f DISK oULTI-VATOR. APPLICATION FILEDAUG. 8, 1908.

2 summe-amig? -x.

PATBNTBD MAY 14, i907 Y J. GRANT. DISK GULTIVATOR.

APPLmATIoN FILED AUG. s, 190s. 4

' a sunweb-slum 2.

UNrrED I,STATES PArENr orricn.

Jamas GRAN-fr,- oF coniAM, vi'croam, AUSTRALIA.

falsi( CuL'rlva-ron.

No. Vstaino.

count of Moira, State of Victoria, Commonwealt of.Australia, engineerhave invented vcertain new. and useful Improvements .in

jDisk'Cultivato'rs, of which the following vis a `vepefcilication.

M invention relates. vto disk cultivators and its obectis toprovide animlement which shal notA only be cheap in st cost but also effective andconvenient in use.

Among Iits chiefffeatures arezThe right and left hand sides of. theframe can be elef vated or depressedb hand levers, the backA of theframe can also e elevated o r `depressed by shifting collars, the diskshaft can, one

end at`a time, or both ends together, be elevated or loweredin relationto the framejthe front end of the said diskscan likewise be movedbackward or forward and thereby he inclined tothe angle of draftand athrust bracket is rovided-which is capable of moving along t eleft handframe piece, and has a thrust block therein which is adjustable.

'- Referring to the .drawings Which`form a part of this specificationFigure 1 is a plan of my invention. A mall ortion ofthe diago-- nalframe piece is brolen away and one clamp removed to illustrate one ofthe disk s haft bearings .and lug thereon. Fig. 2 is a "viw, on areduced scale, of' my cultivator looking at it from the left hand side.Fig. 3 a erspective view, on an enlarged scale of ,the urrow wheel andthe means whereby it is grieved outwardly or inwardly, elevated'orressed, and inclined to the line of draft.

e 4 is an elevation' on' an enlarged scale the thrust bearing bracket.Fig'. 5 is a sectional elevation-of Fig, 4. Fig. (iis4 a detail view onan enlarged scale -oi a disk shaft h bearing and the means forelevating, de-

i M invention includes a pressing, or inclining the disks.

Orcor'respondingparts where they occur in Similar letters of referenceindicatel similar the several views.-

a -le t hand frame piece A (Figs. 1 and 2).

4Alsoa front frame 'ieee B. On thel right" hand end'ofthe sai. frontframe piece is a forward extension frame-:piece C. Behind the forwardextension frame piece Cl is an..

adjusting backward extension frame ieee D (Fig. 1). The length of thiswill depend upon circumstances. l lFrom the backend of Specification ofL etteri Patent. ipyuaamma iugm s, reca. refaire. 329.755'.

frame in'which is` to therame ieee A extends a diagonal vframe piece othe diagonal frame piece -E and .to the foot lF onthe left hand framepiede A is attached a supplementary frame piece G. Between4 the frontframe piece B and diagonal frame '.piece E is a ross frame piece l v 'Tothe supplementary frame piece G and the foot F is.a'ttachedl a'bearing,J (Pigs. 1 and 2) having therein a vertical hole. Ad- 'acent to thesaid bearing is a stop plate K.

hrough this sto plate are adjusting holes L (Fig.A 1) into w 'ch passes.a stop in M se cured by a chain or other means to t e frame. Into-thevertical hole in the bearing passesa vertical portion on the inner4 endof a stem or A Patented may 14, 190'?.

wheel carrying arm N. Above and below the bearing ll-andaround the saidvertical portion are shifting Icollars whereby the said verticalportionmay be 'locked vertically in any desired osition in the` bearing J; Onthe outer en of the wheelv carrying arm N turns theback Wheel P.. By.means -c the stop pin'M the back wheel'P may be retained at 'anyparticular angle with the line of' draft. A K.

Near the front left hand side of the machine isthe land Wheel Q. Thesaid land wheel turns upon the outer end of a' stud R,

the inner end ci which is secured to the. outer end oi' the short arm S(see Figf2) 'of a bell crank lever.v The angle of the said bell cranklever turns upo'n the overhang'ing end of a shaft '12.; .(Figs; 1 and2)` land wheel hand lever U extends to near the operators seat and is'locked in any .desired position vertically by a pawl V engaging in aAnotched quadrant W. The said notched.

quadrant is attached to the frame in any well known w a To the lorwardextension frame piece C'is attached (see Figs. 1, 2 and 3)' a bracket X.

.In this are holes to accommodate the sliding har Y'. This bar is lockedby lockirlg screws 'Z and is capable of movi-ng, eiidwisezls-to er fromthe implement. Integral with .the outer end of said-v sliding barYer-attached thereto is a bearing A1. .In thisf'is 'E vjrtical Attachedto or integral 'f ing and the 4sliding 'bar Yis a forwa f 1.Extendngbackwardly is a backward af .'To this lbackward'arxn is attacheda noI cled reihe amr-ra @rm B1 is patted a nl tile.

The long arm or roc 4upper. end'oftheliiidmnrow-wheel liever .isf

ro stein N1 and attached to it is the inner end of 'j a steering'l'everOl.

aboveiit a lug V1.

to accommodate freely a bolt W1 (see Fig. G).

within a notched bar O3.

close to the driver and the said lever is looked in anyr desiredposition by a pawl G1 cnlfaging with the notched rack D. To the furrowwheel lever F by a j'ii'vot pin fl (see Fig. IS) are pivoted .the lowerends of two links .,l. The upper .ends of the said links by a pivot pinK1 are pivoied to tho vertical member li* of an elbow piece. Thehorizontal uicnibor M1 has a hole therethrough to accommodate the steinN1. Near the upper end o* the said To the outer cud of the steeringlever O1 is pivoted by a pivot pin l? the steering handle Q1. The backond of the said steering handle Q1 drops into the grooves Theintermediate portion of the stem N1 passes through the bearing A1 andthe lower portion of it is bent' These bolts pass through the forkedlegs X1, situated at the bottom of a bearing'holding rod YT (removedfrorn one side of Fig. l for convenience of illustration). The said bearing holding rods passthrough holes in the arms Z1 of a clamp. The backA2 of thesaid clampgrihas a locking screw B2 therein. The

. said frame.

front clanipiscapable of moving along the adjusting backward .extensionframe piece D so that the front end of the disks may be moved backwardorforward' and lockedin any desired position. On ,thei suppleinen taryframe iece G is supported a drivers seat C2 and foot rests D2 (see Fi Tothe front frame piece Bis attacher? t E in which are a series ofh'olesto permit adjustment of the draft chain F2, At the back end of the vsaiddisk shaft Sl and supported from the left hand frame piece A is placed athrust bearing bracket G2. This is capable of moving backward or forwardupon the In the bottom of saidV bra-ck t (see Fig. 5) is; a chamer IP,in which isa thrust block J2. In t Ve top of this thrust block may be anoil well K2 which by a' channelway communicates with the thrust hole L2.An oil hole M2 in the bracket assists the Bassage of a lubricant to thethrust block J2.

ehind the thrust block J2 is an adjusting screw Nh Or instead ofthe saidthrust bearing bracketbeing attached tothe frame piece A. 1t maybeattached. to a cross piece thereon at right angles to the disk shaftwhen in its noriuslposition.

1 .A lhc cycle of operatlons with my invention he draft barl i is asfollows-The driver on the seat C2 when starting out from the farm andiassing over a' connnou road doprcsses the over U and thc lever im.rlhey lock themselves by thc pawls springing!y into a notch in thequadrant. .llc also raises the roar end of the frame by moviupr theshifting collars l.) on the vertical portion of the stomv .ii carryingthc back wheel l". 'lhc disks are then above the road and in safety andhe steers by means of the steering handle Qi. Having arrived at theIscono of oj'n-.irations he elevatcs the aforesaid levers and moves theshifting collars O and the frame falls and with it descend the diskshaft and the disks. Should, however, the adjustment between the frameand the disks be unsuitable the relative position of the disks and theframe can be adjusted by the clamp screws B2. These ermit the bearing;holding rods Y1 to sliie upwardly or downwardly within the arms-Z1. Byslacking;r the locking screwl B2 on the front clamp the front end of thedisk shaft may be moved vbackward or forward. When j the front diskshaft bearing is attached to the lower member of an L piece the range ofits backward and forward adjustment may be increased.'

j Y Having now describedmy invention what I claim as new and desire tosecure by Letters Patent is., U

.L In a disk cultivator the combination with a frame having a backwardextension frame piece, a left hand frame piece, and-a diagonal framepiece g of a disk shaft below' said frame, bearing holdingrodssupporting,r

the shaft, clamps engaging the backward ex'- tensionpiece andV thediagonal frame piece,4 said clamps adjustably engaging the rods, athrust bearing bracket connected to the left hand frame pie-ce and.adjustable thereon,'

and a thrust block adj ustably mounted With-- in said bracket andconstituting an end bearn ing for the shaft. 1'

, 2. In a disk cultivator the combination IIE with a portable frame, andmeans for ad jisting said frame vertically; of a diagon lly arrangedshaft' Within the frame, adJ

justable means for vsupporting said 'shaft from the frame, means foradjusting said shaft longitudinally, ang disks carried by the i.

shaft.'

3. In a disk cultivator 'the combination with a* portable frame; of adiagonali. arranged shaft, vertically and laterally a justframe,. abracket secured to the frame, a thrust block constituting an .endbearing for the shaft, means for adjusting said block to shift the shaftlongitudinally, and disks upon v-I 2 C able means for supporting the'shaft from the Y in'eensfor sivpporting'theisheft et points 1oe-l freme,rand means for iinparting longt 'dinal ,1os7 and vineens for impartinglon- Inovement to the shaft.

tween its en l gitudinal movement to said shaft.

IIn testimony whereof I affix eignatuife.

5. In a disk eultivatol" the combination in the presence of twosubscribing"Jv'it/Iiessesg44 with a portable frame; of n,diagonallyarranged, shaft extending throughout the Width of the frame,disks upon the shaft, lon gtudinally and vertically adjustable su portsfor the shaft and lmoul'ited'on At e JAMES GRAW.l Witnesses:v l y f#CHARLES HENRY HABvEig FREDERICK CHARLES LUMMAS.

